5'6, haven't weighed myself in years but my guess would be around 140 lbs, maybe 145.
I would prefer to be about 10-15 lbs lighter (visually speaking - having more muscle/less fat at the same weight would be even better), but it probably won't happen, since my metabolism seems to shove me pretty hard towards this weight - I doubt I've varied more than +/- 5lbs in 10 years. I could try harder with diet/exercise, like most people, but what's the fun in that? So I am mostly happy with my weight. It could be worse.
My ideal height would be closer to 5'8 but there's no point dwelling on that one. That's what heels are for anyway.